Disjoint circles: a classification

Gary L. Ebert
1977 Transactions of the American Mathematical Society  
For q a prime-power, let IP(?) denote the miquelian inversive plane of order q. The classification of certain translation planes of order q2,
doi:10.1090/s0002-9947-1977-0442819-9 fatcat:l6nfuxjoijegdkl62yxz6id6sa